Evolution of PHAS loci in the young spike of Allohexaploid wheat.

ABSTRACT: BACKGROUND:PhasiRNAs (phased secondary siRNAs) play important regulatory roles in the development processes and biotic or abiotic stresses in plants. Some of phasiRNAs involve in the reproductive development in grasses, which include two categories, 21-nt (nucleotide) and 24-nt phasiRNAs. They are triggered by miR2118 and miR2275 respectively, in premeiotic and meiotic anthers of rice, maize and other grass species. Wheat (Triticum aestivum) with three closely related subgenomes (subA, subB and subD), is a model of allopolyploid in plants. Knowledge about the role of phasiRNAs in the inflorescence development of wheat is absent until now, and the evolution of PHAS loci in polyploid plants is also unavailable. RESULTS:Using 261 small RNA expression datasets from various tissues, a batch of

SUBMITTER: Zhang R 

PROVIDER: S-EPMC7057497 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature